CVE-2026-45986
Analyzed Analyzed - Analysis Complete
Memory Leak in Linux Kernel Crypto Module

Publication date: 2026-05-27

Last updated on: 2026-06-16

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: crypto: ccree - fix a memory leak in cc_mac_digest() Add cc_unmap_result() if cc_map_hash_request_final() fails to prevent potential memory leak.
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Meta Information
Published
2026-05-27
Last Modified
2026-06-16
Generated
2026-06-16
AI Q&A
2026-05-27
EPSS Evaluated
2026-06-15
NVD
CVE-2026-45986
EUVD
EUVD-2026-32282
Affected Vendors & Products
Showing 7 associated CPEs
Vendor Product Version / Range
linux linux_kernel From 6.7 (inc) to 6.12.86 (exc)
linux linux_kernel From 5.16 (inc) to 6.1.175 (exc)
linux linux_kernel From 5.11 (inc) to 5.15.209 (exc)
linux linux_kernel From 6.2 (inc) to 6.6.140 (exc)
linux linux_kernel From 4.17 (inc) to 5.10.258 (exc)
linux linux_kernel From 6.13 (inc) to 6.18.27 (exc)
linux linux_kernel From 6.19 (inc) to 7.0.4 (exc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-401 The product does not sufficiently track and release allocated memory after it has been used, making the memory unavailable for reallocation and reuse.
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Executive Summary

This vulnerability is a memory leak in the Linux kernel's crypto subsystem, specifically in the ccree module within the cc_mac_digest() function. The issue occurs when the function cc_map_hash_request_final() fails, and the necessary cleanup function cc_unmap_result() is not called, leading to potential memory not being freed properly.

Impact Analysis

The impact of this vulnerability is a potential memory leak in the Linux kernel. Over time, this could lead to increased memory usage and possibly degrade system performance or stability if the leak is significant and occurs frequently.

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